Marine elevator



Oct. 11, 1932. LQVEJOY 1,882,512

MARINE ELEVATOR Filed Feb. 24, 1930 3" 4 l fiangfdwg lorqoy A ZTTORNEYPatented Oct. 11, 1932 UNITED STATES FRANK EDWARD LOVEJ'OY, F SEATTLE,WASHINGTON MARINE ELEVATOR Application filed February 24; 1930. SerialNo. 430,913.

The invention is an improvement in marine elevators in that atelescoping beam is provided at the top which may extend out beyond thelimits of the vessel to position a gang plank or transfer board upon adock or the like.

The object of the invention is to provide mechanical means for movingand locating the transfer board of a freight elevator which heretoforehas been moved by manual labor.

Another object of the invention is to provide means for moving andpositioning the transfer board of a freight elevator by which it may bepositioned in the least possible time. 7 i

A further object of the invention is to provide means for handling atransfer board so that it may readily be moved and positioned by oneman.

And a still further object of the invention is to provide operating gearfor the transfer board of a marine elevator which is of a simple andeconomical construction.

WVith these ends in view the invention embodies an elevator positionedin the hold of a boat, a telescoping trolley beam at the top of theelevator, a manually operated trolley upon the said beam, a transferboard suspended from the trolley, and means for operating the saidtelescoping beam.

Other features and advantages of the invention will appear from thefollowing description taken in connection with the drawing, wherein:

Figure 1 is a view showing the apparatus as it would appear in use.

Figure 2 is a view showing an end elevation of the upper end of theelevator.

Figure 3 is a detail showing the construction of the telescoping beam.

Figure 4 is another detail showing the gears for operating thetelescoping beam.

In the drawing the elevator is shown as it would be made, whereinnumeral 1 indicates the elevator platform, numeral 2 the transfer board,and numeral 3 the trolley.

The platform 1 is suspended in a rectangu- V lar frame formed by fourcorner posts 4:, which may be mounted in a boat in any suitable manner,and these are connected at the top by longitudinal beams 5 andtransverse beams 6. The platform 1 is suspended by cables 7 which passover sheaves 8 at the up: per end and around drums 9 at the lower end.

The drums 9 may be attached to any suitable type of Windlass, oroperated in any suitable manner.

' The telescoping beam 3 is mounted upon rollers 10 between channels 11supportedupon the transverse beam 6, as shown in Figure 3. The rollers10 are rotatably mounted in the webs of the beams and also in bearingplates 12 at the tips of the beam flanges as shown in Figures 3 and 4.It will be notedthat this will permit the beam to movelongitudinally anda trolley '13 may be mounted on the lower flange of the beam by rollers14. The trolley may be operated by a cable 15, and is provided with achain 16 with a clevis 17 at the lower end which hooks into a ring 18to'which four cables as indicated by the numeral 19 are attached. Theouter ends of the cables are attached by hooks 20 to flanges 21 at thesides of the transfer board 2, and it will be noted that when thetransfer board is in place, as

shown in Figure 1, the cables 19 may be removed to provide anunobstructed passage over the board.

On the upper side of the beam 3 is a continuous gear rack 22 whichmeshes with a gear 23, as shown in Figure 4, and the gear 23 meshes witha pinion 24 on a shaft 25. A sprocket wheel 26 is also mounted upon theshaft and this sprocket may be rotated by a continuous chain 27 from asprocket 28 on a shaft 29, and the shaft 29 may be rotated by a handchain 30 through a sprocket'31, which is also mounted upon the shaft 29.It will therefore be noted that by drawing the hand chain 30 downward inone direction it will move the trolley beam 3 toward oneside, and bymoving the chain in the opposite direction the beam 3 may be movedtoward the, oppositeside. The beam 3 may be provided with stops 32 atthe ends to limit the movement thereof;

It will beunderstood that changes may be made in the constructionwithout departing from the spirit of the invention. One of which changesmay be in the type or design of the elevator, as it is understood thatthe device may be used with an elevator of any suitable type or designand for any other purpose, another may be in the design or arrangementof the details of the telescoping beam as it is understood this may bearranged in any suitable manner, another maybe in the use of other meansfor operating the telescoping beam, another may be in the use of-a-trolleyof any other type or design, and still another.

may be in the use of a transfer board of any other type or design.

The construction Wlll be understood from the foregoing description. Inuseithe device will move out upon the beam to the position shown andthen operated to lower the :board uponthe dock, as shown- This completeoperationmay be performedin a comparatively few minutes, whereasheretofore it'requi-red considerable time to raise thetransfer boardfrom the elevator platform and move it into position byhand; This boardweighs approximately two, tons and it-is therefore a very decidedadvantage to provide mechanical means for placing it inposition.

Having thus fully described the invention, what I claim as new anddesire to secure by Letters P-.atent, is:

1. In a marine elevatorof the type having a frame positioned over andextending into the hold of a ship, with a raising and lowering platform,and having a transferboardin combination therewith, a telescoping beaminthe, top and at the center of said-frameand a hoisting apparatus on saidbeam adapted to pickup said transfer board, convey it "to the side oftheship and position same with one end at a point convenientlyreached'by said elevator platform and the otherend resting on a docktowhich the ship may be moored.

2. In a marine elevator of the type having a frame positioned over andextending into the hold of a ship, having a raising and loweringplatform and a transfer board -l11p001l1 bination therewith, astationary trackat the top and in the center of said frame, a beamslidable on said trackand adapted to slide toward either side of theship, means on the said beam for picking up and lowering said transferboard, and means forsliding said beam. 7 1 3.'In combination, anelevatorhaving a raising and lowering platform, and a telescoping beamwith 'a, hoisting apparatus thereon for picking up objects on saidplattransfer boardzand hoist whereby the hoist may raise and convey saidboard.

5. In anelevator" o-fthe-type having a raising and 'loweringplatform andadapted to be positioned inth e'hold of-a ship, a telew scoping beampositionedin the t op of said elevatorand ad-a ptedto-extend beyond thelimits of either side thereof, a transfer board normally restinglon saidplatform,-and means on said telescopingbeam for adjusting the positionof said board.

In testimony whereof he affixes his-signature.

F EDWARD LovnJor.

